165123491062 has 4 divisors (see below), whose sum is σ = 247685236596. Its totient is φ = 82561745530.

The previous prime is 165123491059. The next prime is 165123491069. The reversal of 165123491062 is 260194321561.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 260194321561 = 2063 ⋅126124247.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (165123491069) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 41280872764 + ... + 41280872767.

It is an arithmetic number, because the mean of its divisors is an integer number (61921309149).

Almost surely, 2^165123491062 is an apocalyptic number.

165123491062 is a deficient number, since it is larger than the sum of its proper divisors (82561745534).

165123491062 is an equidigital number, since it uses as much as digits as its factorization.

165123491062 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 82561745533.

The product of its (nonzero) digits is 77760, while the sum is 40.

The spelling of 165123491062 in words is "one hundred sixty-five billion, one hundred twenty-three million, four hundred ninety-one thousand, sixty-two".